Harman US

Pontiac, MI Weather & Growing Conditions

Overnight
55°F
Chance Light Rain
A chance of rain. Mostly cloudy, with a low around 55. Northeast wind around 6 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.

7-day forecast

WhenTempForecastWindPrecip
Overnight 55°F Chance Light Rain 6 mph NE 32%
Saturday 65°F Rain Showers 5 to 8 mph E 82%
Saturday Night 56°F Showers And Thunderstorms 5 to 8 mph E 78%
Sunday 66°F Chance Rain Showers 7 to 12 mph NNE 51%
Sunday Night 52°F Chance Rain Showers then Mostly Cloudy 8 to 12 mph NE 41%
Monday 63°F Mostly Cloudy 13 mph NE 10%
Monday Night 49°F Mostly Cloudy 13 mph NE 10%
Tuesday 62°F Mostly Cloudy then Slight Chance Rain Showers 14 mph NE 15%
Tuesday Night 51°F Chance Rain Showers 13 mph NE 47%
Wednesday 61°F Chance Rain Showers 13 mph ENE 49%
Wednesday Night 52°F Chance Rain Showers 7 to 10 mph NE 49%
Thursday 64°F Partly Sunny 9 mph NE 14%
Thursday Night 52°F Mostly Cloudy 5 to 8 mph NNE 13%
Friday 68°F Mostly Sunny 5 to 8 mph NNE 8%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Pontiac, MI

Last spring frost
Apr 26
First fall frost
Oct 22
Growing season
177 days
Hardiness zone
6a

Explore more for Pontiac, MI: full frost dates · planting calendar · Michigan frost dates

Climate data from the nearest NOAA station, Pontiac Wwtp, Mi (1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.